<template>
    <div class="auth-page">
        <div class="container page">
            <div class="row">
                <div class="col-md-6 offset-md-3 col-xs-12">
                    <h1 class="text-xs-center">{{ isLogin ? "Sign in" : "Sign up" }}</h1>
                    <p class="text-xs-center">
                        <nuxt-link v-if="isLogin" to="/register">Need an account?</nuxt-link>
                        <nuxt-link v-else to="/login">Have an account?</nuxt-link>
                    </p>

                    <ul class="error-messages">
                        <template v-for="(messages, field) in errors">
                            <li v-for="(message, index) in messages" :key="index">
                                {{ field }} {{ message }}
                            </li>
                        </template>
                    </ul>

                    <form @submit.prevent="onSubmit">
                        <fieldset class="form-group" v-if="!isLogin">
                            <input v-model="user.username" class="form-control form-control-lg" type="text"
                                   placeholder="Your Name" />
                        </fieldset>
                        <fieldset class="form-group">
                            <input v-model="user.email" class="form-control form-control-lg" type="text"
                                   placeholder="Email" />
                        </fieldset>
                        <fieldset class="form-group">
                            <input v-model="user.password" class="form-control form-control-lg" type="password"
                                   placeholder="Password" />
                        </fieldset>
                        <button class="btn btn-lg btn-primary pull-xs-right">
                            {{ isLogin ? "Sign in" : "Sign up" }}
                        </button>
                    </form>
                </div>
            </div>
        </div>
    </div>
</template>

<script>
import { login, register } from '@/api/user'

//仅在客户端加载jscookie包
const Cookie = process.client ? require('js-cookie') : undefined

export default {
    middleware: 'notAuthenticated',
    name: 'LoginIndex',
    asyncData() {},
    data() {
        return {
            user:{
                email:'',
                username:'',
                password:''
            },
            errors: {} // 错误信息

        }
    },
    computed: {
        isLogin() {
            return this.$route.path === '/login'
        }
    },
    methods: {
       async onSubmit(){
        try{

        const { data } = this.isLogin ? await login({ user: this.user }) : await register({ user: this.user })
        // 保存登陆状态
        this.$store.commit('setUser', data.user) // mutating to store for client rendering
        //为了防止刷新页面数据丢失 把数据持久化
        Cookie.set('user', data.user) // saving token in cookie for server rendering
        // 跳转到首页
        this.$router.push('/')

        }catch(err){
            this.errors = err.response.data.errors

        }
        }
    },
}
</script>
<style></style>
